問題: 艙蓋水密測試 (hose test)

請問各位先進：
以下為查到的艙輕?lt;br />Hose test is carried out with a powerful jet of water that is directed to the cross joints of a hatch cover set at a pressure of 2-3 kg/cm2. The water should be emanating from a 15-18 m/m diameter nozzle that is held at a distance of 1-1.5 meters from the cross joint whilst walking along the cross joint with a moving speed 0f 2m/sec. The hatch cover perimeter joints should be checked in a similar manner by aiming the nozzle directly at every part of the peripheral packing rubbers

其中艙?周圍的測試, 是從甲板上垂直對著縫的直角測試 還是由艙誘W垂直對著縫的直角測試
如果有人知道的話,請說明一下
謝謝!
感恩!!!